Spill prevention device



FIG. 1 is a perspective view of a spill prevention device, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a cross-sectional view thereof, taken generally along lines 3—3 of FIG. 2;

FIG. 4 is a cross-sectional view thereof, taken generally along lines 4—4 of FIG. 2;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left-side elevational view thereof, the right-side elevational view being a mirror image thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines showing a cup in FIG. 1 are included for the purpose of illustrating the invention in use, and form no part of the claimed design. 

I claim the ornamental design for a spill prevention device, as shown and described. 